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Antigenic relationships between Aracoccidioides loboi and other pathogenic fungi determined by immunofluorescence

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Summary

The fluorescent antibody technique was used to study antigenic relationships betweenParacoccidioides loboi and other pathogenic fungi. The findings suggest thatP. loboi is more closely related antigenically to certainP. brasiliensis strains than to others and that it has antigens in common with the yeast form ofHistoplasma capsulatum, H. duboisii, Blastomyces dermatitidis, Candida albicans and also the mycelial form ofCoccidioides immitis. Serum globulins from 3 cases of keloidal blastomycosis were labelled with fluorescein isothiocyanate. These conjugates showed slight or no reactivity withP. loboi, the yeast forms ofP. brasiliensis, H. capsulatum, H. duboisii andB. dermatitidis, However, they stained brightlyC. albicans, serotypes A and B, the tissue form ofC. immitis and the yeast form ofSporotrichum schenckii. Adsorption of these reagents withC. albicans eliminated all staining except that forS. schenckii. These patients had no history of clinical sporotrichosis.

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References

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Authors and Affiliations

  1. U.S. Department of Health, Education, and Welfare Public Health Service Bureau of Disease Prevention and Environmental Control, National Communicable Disease Center, 30333, Atlanta, Georgia

    Manuel E. Silva, William Kaplan & Jose L. Miranda

Authors
  1. Manuel E. Silva
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  2. William Kaplan
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  3. Jose L. Miranda
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Additional information

Deceased. Last address: Fundacão Gonçalo Moniz, Salvador, Bahia, Brazil. Requests for reprints should be sent to Dr.William Kaplan.

Dr.Miranda is in private practice in Rio de Janeiro, Brazil.

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Silva, M.E., Kaplan, W. & Miranda, J.L. Antigenic relationships between Aracoccidioides loboi and other pathogenic fungi determined by immunofluorescence. Mycopathologia et Mycologia Applicata 36, 97–106 (1968). https://doi.org/10.1007/BF02049674

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  • DOI: https://doi.org/10.1007/BF02049674

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